Deterministic and efficient message packet management

ABSTRACT

Methods, devices, and systems for facilitation of deterministic management of a plurality of electronic message packets communicated to an application via a network from a plurality of message sources. The facilitation involves an electronic message packet from the network, determining data indicative of order the electronic message packet was received relative to previously received electronic message packets, and providing the order to the application.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation under 37 C.F.R. §1.53(b) of U.S.patent application Ser. No. 14/134,688 filed Dec. 19, 2013 (AttorneyDocket No. 004672-13021A-US) now U.S. patent Ser. No. ______.

BACKGROUND

A financial instrument trading system, such as a futures exchange,referred to herein also as an “Exchange”, such as the Chicago MercantileExchange Inc. (CME), provides a contract market where financialinstruments, for example futures and options on futures, are traded.Futures is a term used to designate all contracts for the purchase orsale of financial instruments or physical commodities for futuredelivery or cash settlement on a commodity futures exchange. A futurescontract is a legally binding agreement to buy or sell a commodity at aspecified price at a predetermined future time. An option is the right,but not the obligation, to sell or buy the underlying instrument (inthis case, a futures contract) at a specified price within a specifiedtime. The commodity to be delivered in fulfillment of the contract, oralternatively the commodity for which the cash market price shalldetermine the final settlement price of the futures contract, is knownas the contract's underlying reference or “underlier.” The terms andconditions of each futures contract are standardized as to thespecification of the contract's underlying reference commodity, thequality of such commodity, quantity, delivery date, and means ofcontract settlement. Cash Settlement is a method of settling a futurescontract whereby the parties effect final settlement when the contractexpires by paying/receiving the loss/gain related to the contract incash, rather than by effecting physical sale and purchase of theunderlying reference commodity at a price determined by the futurescontract, price.

Current electronic financial instrument trading systems may allowtraders to submit orders to buy or sell contracts electronically to anorder book maintained and managed by an exchange. The orders may besubmitted electronically to the order book through an order entrygateway using electronic messages formatted as units of data known aspackets.

Packets and packet switched networks are used extensively in electroniccommunications. Packet switched networks utilize a digital networkingcommunications method that groups all transmitted data—regardless ofcontent, type, or structure—into suitably sized blocks, called packets.Generally, packets may contain control information as well as user data,also known as a payload or actual content. Typically, the controlinformation provides data the network needs to deliver the user datasuch as source and destination network addresses and the user data isinvolves the actual content intended to be communicated between thesource and the destination. For example, packets may be consideredmessages, with the control information providing addresses orinformation about the actual content of the message included as userdata.

Electronic message packets may be communicated via networks. Generally,a network interconnects one or more computers so that they maycommunicate with one another, whether they are in the same room orbuilding (such as a Local Area Network or LAN) or across the countryfrom each other (such as a Wide Area Network or WAN). A network is aseries of points or nodes interconnected by communications paths.Networks can interconnect with other networks and can containsub-networks. A node is a connection point, either a redistributionpoint or an end point, for data transmissions generated between thecomputers which are connected to the network. In general, a node has aprogrammed or engineered capability to recognize and process or forwardtransmissions to other nodes. The nodes can be computer workstations,servers, bridges or other devices but typically, these nodes are routersor switches. Electronic message packets may be communicated from anorigin through a series of nodes to an intended final destination.

Further, even as electronic message packets arrive at a destination, thehandling of the electronic message packets at the destination may alsoinvolve multiple steps, component interactions, and processes until themessage is ultimately received by a destination application for usethereby. This process may be further complicated if multiple electronicmessage packets from multiple origins are communicated to a commondestination application using communication protocols that organizeelectronic message packets based on origin for processing at the commondestination. For example, a communication protocol may indicate that abuffer will be created for each source at the destination, and thatelectronic message packets from each source will be placed in therespective buffer for each source at the destination. This arrangementmay require the destination, and ultimately the intended destinationapplication for the electronic message packets, to monitor a significantnumber of buffers for new messages. These involved processes andpotential multiple buffers may also allow electronic message packetsfrom different sources to “pass” each other such that an original orderof the electronic message packets is lost as the electronic messagepackets travel to the common destination application, or when themessage packet payload is consumed or used by the common destinationapplication.

Some applications which utilize packet switching networks may involvedeterministic requirements that place a priority on individualelectronic message packets based on arrival, i.e. the order thereof, ofthe electronic message packets. These applications may involve lotterysystems, ticketing systems, auction systems, financial message systems,or any other application where priority may be provided to a messageover another message based on earlier receipt than the other message.The network communication process, as well as the complications involvedin the processing of packets once they arrive at a destination so thatthey are recognized and/or consumed by the destination application, maymake it difficult to determine a priority between electronic messagepackets from different origins, arriving at the common destinationwithin a small time period.

For example, to gain and maintain the trust and confidence of marketparticipants and encourage participation, electronic trading systemsideally attempt to offer a more efficient, fair and balanced marketwhere market prices reflect a true consensus of the value of tradedproducts among the market participants, and which minimize, if noteliminate, surreptitious or overt subversion, influence of, ormanipulation by, any one or more market participants, intentional orotherwise, and unfair or inequitable advantages, with respect to accessto information or opportunities. To accomplish these goals, for example,electronic trading systems should operate in a deterministic, i.e. acausal, predictable, or otherwise expected, manner as understood andexperienced by the market participants, i.e. the customers of theExchange. Electronic trading systems which implement markets which areovertly or covertly inefficient, unfair or inequitable risk not onlylosing the trust, along with the patronage, of market participants, butalso increased regulatory scrutiny as well as potential criminal and/orcivil liability.

Accordingly, the operators of electronic trading systems, alone or inconjunction with, or at the direction of, regulatory or industryorganizations, typically publish or otherwise promulgate rules orregulations, referred to as business or operating rules, which governthe operation of the system. These rules define how, for example,multiple transactions are processed by the system where thosetransactions have relationships or dependencies there between which mayaffect the result of such processing. Such business rules may include,for example, order allocation rules, i.e. rules which dictate which ofmultiple competing resting orders will be matched with a particularincoming order counter thereto having insufficient quantity to fill allof the suitable resting orders. For example, under a first-in-first-outmethodology, the first order, of the competing resting orders, that wasreceived by the electronic trading system will be matched with theincoming counter-order and filled to the extent possible by theavailable quantity, with any residual quantity of the incoming counterorder then being allocated to the next received suitable competingresting order and so on until the available quantity of the incomingcounter order is exhausted. However, additional or alternativematching/allocation rules may be implemented as well, for example toensure fair and equal access, improve trading opportunities, etc., byallocating, such as proportionally, the available quantity of theincoming counter order among all, or a subset, of the competing restingorders until the available quantity is exhausted.

Once such business rules are established, or modified, marketparticipants will expect, and overseeing regulatory entities mayrequire, that the electronic trading system operate in accordancetherewith. That is, if the Exchange adopts a rule to give first arrivingorders priority over later arriving orders, a market participant whosubmits an earlier arriving order will expect their order to be filledprior to a later arriving order submitted by another market participant.It will be appreciated that these rules, by which operators of anelectronic trading system may choose to operate their system, may varyat the discretion of the operators, subject to regulatory concerns.Generally, the term “transactional determinism” may refer to theprocessing, or the appearance thereof, of orders in accordance with thedefined business rules.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 depicts a flow chart for a method involving the facilitation ofdeterministic message management.

FIG. 2A depicts a system for deploying deterministic message managementand efficient message processing.

FIG. 2B depicts the destination of the system for deployingdeterministic message management and efficient message processingdepicted in FIG. 2A.

FIG. 3 depicts a block diagram of embodiments for deterministic messagemanagement and efficient message processing.

FIG. 4 shows an illustrative embodiment of a general computer system fordeterministic message management and efficient message processing.

FIGS. 5A, 5B, and 5C illustrate packet processing.

DETAILED DESCRIPTION

Packets transmitted from different sources to a common intendeddestination may be processed in accordance with deterministic operatingrequirements by determining an order in which the packets arrive, suchas based on their arrival at a common point in a network through whichthe packets must travel to get to their intended destination. Thepackets may then be communicated, along with data indicative of theirarrival order, to the intended destination of the packets. The packetsmay be communicated to the intended destination in a manner exhibitingand/or maintaining the designated order, or the packets and thedetermined order may be communicated separately to the finaldestination. The disclosed embodiments may relate to communication offinancial messages from multiple market participants to an exchange,such as the Chicago Mercantile Exchange (“CME”), to facilitate thematching of trades based on a deterministic management of the financialmessages, however, it will be realized by those in the art thatembodiments may relate to any packet messaging system wheredeterministic processing may be desired or required.

The following embodiments may alleviate the issues related to processingand determining priority of message packets at a destination applicationafter the message packets have been communicated through a network andprocessed by a common destination. For example, the ability to determinean order of incoming messages, regardless of message packet origin, maybe determined and provided to a common destination application of theincoming messages. Further, the following embodiments may reduce theresources required to handle a large volume of message packets.

In an exemplary embodiment, a financial market may implement rulesdefining priority for the matching of incoming orders against previouslyreceived, but unsatisfied orders entered in an order book, andultimately matched using a match engine. Establishing a priority for aplurality of electronic message packets that represent incoming ordersmay involve deterministic processing of the electronic message packetssuch that earlier received packets, comprising the earlier receivedorder, receive higher priority for being matched than later receivedpackets. The deterministic processing, or management, of the pluralityof electronic message packets ultimately communicated to an order entrygateway via a network from multiple different trading entities may befacilitated by receiving each of the plurality of electronic messagepackets representing orders from the network. The deterministicprocessing may be further facilitated by determining upon receipt of theelectronic message packets, but prior to the received electronic messagepackets being provided to the order entry gateway, an order in whicheach electronic message packet was received relative to the reception ofothers of the plurality of electronic message packets, the order beingdetermined irrespective of which trading entity of the multipledifferent trading entities each of the received electronic messagepacket originated from. The deterministic processing may also befacilitated by providing the electronic message packets to the orderentry gateway. For example, the electronic message packets may beprovided in a single buffer regardless of the trading entity thatoriginated the electronic message packet. Another buffer may also beprovided indicating the order in which the electronic message packetswere received. The order entry gateway may then be configured to collectthe electronic message packets and the determined order from the twobuffers and provide them to an order book or a match engine. A matchengine may then use the electronic message packets and the determinedorder to match orders represented by the electronic message packetsbased on a priority determined from the determined order.

In accordance with aspects of the disclosure, systems and methods aredisclosed for packet processing and facilitation of deterministic packetmanagement. The disclosed embodiments are preferably implemented withcomputer devices and computer networks, such as those described withrespect to FIG. 4, that allow users, e.g. market participants, toexchange information with a common destination, e. g. a market. It willbe appreciated that the plurality of entities utilizing the disclosedembodiments may be referred to by other nomenclature reflecting the rolethat the particular entity is performing with respect to the disclosedembodiments and that a given entity may perform more than one roledepending upon the implementation and the nature of the particulartransaction being undertaken, as well as the entity's contractual and/orlegal relationship with another market participant and/or the exchange.

The following embodiments may relate to electronic message packetscommunicated using any communicative network, including the internet.The Internet, in particular, is a worldwide network which primarily usesthe Transport Control Protocol and Internet Protocol (“TCP/IP”) topermit the exchange of information including electronic message packets.At a higher level, the Internet supports several applications protocolsincluding the Hypertext Transfer Protocol (“HTTP”) for facilitating theexchange of HTML/World Wide Web (“WWW”) content, File Transfer Protocol(“FTP”) for the exchange of data files, electronic mail exchangeprotocols, Telnet for remote computer access and Usenet (“NNTP” orNetwork News Transfer Protocol) for the collaborative sharing anddistribution of information. It will be appreciated that the disclosedembodiments may relate to messages communicated using the TCP protocol,however the disclosed embodiments are applicable to messagescommunicated using many different transport protocols both now and laterdeveloped. For example, the enclosed embodiments may relate to the useof User Datagram Protocol (“UDP”) techniques to communicate messages.

Herein, the phrase “coupled with” is defined to mean directly connectedto or indirectly connected through one or more intermediate components.Such intermediate components may include both hardware and softwarebased components. Further, to clarify the use in the pending claims andto hereby provide notice to the public, the phrases “at least one of<A>, <B>, . . . and <N>” or “at least one of <A>, <B>, <N>, orcombinations thereof” are defined by the Applicant in the broadestsense, superseding any other implied definitions herebefore orhereinafter unless expressly asserted by the Applicant to the contrary,to mean one or more elements selected from the group comprising A, B, .. . and N, that is to say, any combination of one or more of theelements A, B, . . . or N including any one element alone or incombination with one or more of the other elements which may alsoinclude, in combination, additional elements not listed.

FIG. 1 depicts a flow chart of the operation of a system forfacilitating deterministic message management. The system may beimplemented with computer devices and computer networks, such as thosedescribed with respect to FIG. 4.

In an embodiment, messages are received from any number of messageorigins sharing a common destination from a position of a network (Block110). The position may be selected as a designated location where anarrival order of messages may be determined. Generally, the position maybe selected as a position where messages requiring a deterministicassignment of order must pass to reach the common destination, ordestination application. In an embodiment, the position may be chosen asa common point of ingress into a system representing a commondestination for the messages.

Receiving may be performed using any technique operable to acquire orremove the messages from a path through the network upon which themessages are traveling. In an embodiment, the messages are received atthe common destination using a network interface controller (“NIC”). AnyNIC may be used, however in an embodiment, a NIC may be adapted toimplement embodiments disclosed herein using various hardware orsoftware components and configurations, such as those disclosed withrespect to FIG. 4. For example, a NIC may involve multiple (i.e. four)Small Form-Factor Pluggable transceivers (“SFP”) to interface with anetwork, a Digital Signal Processor (“DSP”) to transform signals fromthe network into data, an Altera Stratix® series Field Programmable GateArray (“FPGA”) to perform operations with/on the data, NIC specificRandom Access Memory (“RAM”) sized at 48 Gigabytes, a NIC specificPrecision Time Protocol (“PTP”) clock, and a Peripheral ComponentInterconnect port to connect the NIC to a server or other computer.

In an embodiment, an order that messages are received is determined(Block 120). A message order may involve the chronological order inwhich each message is received. The order may be designated using anytechnique operable to relay a tangible representation of the order. Arepresentation of the order may involve arranging and storing themessages based on the order, modifying the messages to provide anindication of the order, associating a listing of the order with themessages, or any combination of these or other representations of theorder.

In an embodiment the messages are communicated to a destination (Block130). The destination may be the common destination for the messages.The messages may be communicated using any technique operable to relaythe messages to the common destination. For example, the communicationmay be via the network the messages from which the messages werereceived, or another network. The messages may be required to flowthrough additional nodes after being communicated, but prior to reachingthe common destination. In an embodiment, the destination may beconsidered an application at the common destination, or applicationdestination, at which the messages respective origins intended to be theoperative application on the message. For example, the payload of amessage may contain data for use by the application destination.

The communicating (Block 130) may involve the communication of adetermined message order such that a common destination application isable to establish a determined order in which the messages werereceived. The determined message order may be represented in any format,and communicated using any communicative technique. In an embodiment, adetermined message order may be communicated as table containing messagearrival times at the common destination for the received messages. Thistable may be communicated by storing it on a memory, and informing theapplication destination of the existence of the table.

FIG. 2A depicts a networked system for deploying deterministic messagemanagement facilitation. The system involves multiple sources 210, 211,212, 213 connected to nodes 214, 215, 216 of a network that may be usedfor communicating electronic message packets to a common destination230. Each of the multiple sources 210, 211, 212, 213 may transmitmultiple electronic message packets to the common destination 230. Thesystem may also involve other nodes 217, 218, 219 through which theelectronic message packets may pass to reach the common destination 230.The system may also include a deterministic message processor 220 thatmay facilitate deterministic processing or management of the electronicmessage packets. Embodiments may provide that the sources 210, 211, 212,213, destination 230, and the deterministic message processor 220 areimplemented with computer devices and computer networks, such as thosedescribed with respect to FIG. 4. An embodiment may also provide thatthe deterministic message processor is a component of a destination 230implemented with computer devices and computer networks, such as thosedescribed with respect to FIG. 4.

In an embodiment, the deterministic message processor 220 may interfacewith the network such as to receive the electronic message packets fromthe sources 210, 211, 212, 213 for the destination 230. In anembodiment, the deterministic message processor 220 may be integratedwith the destination 230 such that the destination 230 interfaces thenetwork through the deterministic message processor. In anotherembodiment, the deterministic message processor 220 may be positioned soas to interface on the network at a position 221 configured such thatall electronic message packets requiring deterministic processing mustflow through the position 221 to reach the destination 230.

The deterministic message processor 220 may be operational to facilitatethe deterministic management of electronic message packets. In anembodiment, the deterministic message processor 220 may be operationalto intercept or receive electronic message packets from multiple sources210, 211, 212, 213 prior to providing the electronic message packets, orthe payload of the electronic message packets, to the destinationapplication 234. The deterministic message processor 220 may also beoperational to determine an order that the electronic messages werereceived. The deterministic message processor 220 may also beoperational to communicate or provide the received electronic messagepackets to the destination application 234 along with the designation ofthe received order of the electronic message packets.

In an embodiment, the deterministic message processor 220 may be asystem for facilitation of deterministic management of a plurality ofelectronic message packets communicated to a destination application 234via a network from a plurality of message sources 210, 211, 212, 213.The system may be implemented with computer devices and computernetworks, such as those described with respect to FIG. 4. For example,the system may involve at least one processor 402 configured to causethe system to receive each of the plurality of electronic messagepackets from the network. The at least one processor 402 may also beconfigured to cause the system to determine, upon receipt thereof priorto the received packet being provided to the application, an order inwhich each electronic message packets was received relative to thereception of others of the plurality of electronic message packets, theorder being determined irrespective of which message source of theplurality of message sources 210, 211, 212, 213 each of the receivedelectronic message packets originated from. The at least one processor402 may also be configured to cause the system to provide the order tothe application by storing the order, or a representation of the order,on a memory 404 to which the destination application 234 has access. Inan embodiment, the order is stored on a memory 404 in the form of abuffer associating each message of the plurality of electronic messagepackets with the order. The buffer may be further operable to be read bythe destination application 234. In an embodiment, the plurality ofelectronic message packets may be provided for the destinationapplication 234 in a singular buffer stored on the memory 404. Each ofthe plurality of electronic message packets may be stored in thesingular buffer, and accessible by the destination application,irrespective of the particular source of each electronic message packet.

A packet may be considered received at the deterministic messageprocessor 220 when the packet is received in any reliable or verifiedmanner. In an embodiment, packets may be considered received when anacknowledgment has been transmitted to the message source or theplurality of message sources 210, 211, 212, 213 that originated thepacket being received. For example, TCP primarily uses an acknowledgmentscheme for packet receipt acknowledgment, where a receiver of a packetsends an acknowledgment signifying that the receiver has received alldata preceding or associated with the acknowledged sequence number. Apacket may be considered received upon the transmission of theacknowledgement. In another embodiment, a packet may be consideredreceived at the moment a network interface receives data indicating thepacket.

FIG. 2B depicts a more detailed diagram of the destination 230 of FIG.2A. Electronic message packets arrive as electrical impulses from thenetwork 264 at the destination 230 by way of the port 252 of thedeterministic message processor 220. The electrical impulses are thenprocessed at the Digital Signal Processor (“DSP”) 254 into binarydigital signals readable by the packet order determining 256 and packetprocessing 258 as packets. The DSP 254 then provides the packets topacket processing 258 and the packet order determining 256. The packetorder determining 256 determines an order of the packets from the DSP254. For example, the packet order determining 256 may designate a timestamp the packet was received from the DSP 254. Packet processing 258processes the packets according to a determined protocol, such as TCP.When packet processing 258 completes the processing of a packet, itinstructs the packet order determining 256 as such and the packet orderdetermining 256 writes the packet to the packet buffer 260. The packetorder determining 256 may also configure the order into a formatreadable by the destination application 234 to provide an order ofreceipt for the messages of the packet buffer 260, and write the orderto the order buffer 262. The destination application 234 may thenretrieve the messages from the packet buffer 260 and the order from theorder buffer 262.

In an embodiment, for example a TCP based packet processing 258embodiment, messages intended for a destination application 234 mayinvolve multiple packets. A message may be considered received upon thereceipt of any of the packets that make up the message. In anembodiment, a message involving multiple packets is considered receivedwhen the first packet of the message is received. In another embodiment,a message involving multiple packets is considered received when thelast packet of the message is received. In an embodiment, a messageinvolving multiple packets is considered received when a certainpercentage of the packets of the message are received. In an embodiment,a message involving multiple packets is considered received when the allof the packets are assembled in the packet buffer 260.

FIG. 3 depicts a block diagram of an embodiment involving a system forfacilitation of deterministic management of a plurality of electronicmessage packets communicated to an application via a network from aplurality of message sources, which may be implemented with computerdevices and computer networks, such as those described with respect toFIG. 4. The application may be a common application at the destinationto which all of the plurality of electronic message packets areintended. In an embodiment, the plurality of electronic message packetscomprise financial messages, the plurality of message sources comprisemarket participants, and the application comprises an order entrygateway for use with an exchange operational to match trades using thefinancial messages. Embodiments may involve all, more or fewer actionsindicated by the blocks of FIG. 3. For example, an embodiment mayinvolve receiving (Block 312) and storing (318). Another embodiment mayinvolve receiving (Block 312), determining (Block 314), and providing(Block 316).

The electronic message packets may be transmitted or communicated from asource to the common destination using any technique or protocol. In anembodiment, each of the electronic message packets are formatted fortransmission using Transmission Control Protocol (“TCP”).

An embodiment involves receiving each of a plurality of electronicmessage packets from the network. The plurality of electronic messagepackets may be received at a network interface for a common destinationfor the electronic message packets (Block 312).

An embodiment involves determining an order in which each electronicmessage packet was received relative to the reception of others of theplurality of electronic message packets. The order may be determinedupon receipt of the electronic message packet (Block 314). Also, theorder is determined irrespective of which message source of theplurality of message sources each of the received electronic messagepackets originated from. The order may be indicated by any technique. Inan embodiment, the message order may involve data indicative of a timeof receipt of each of the plurality of electronic message packets. Forexample, a time of receipt may be associated with each of the pluralityof electronic message packets. The times of receipt may be associatedusing any technique. For example, the time of receipt for a package maybe listed in a table with an indicator of the specific electronicmessage packet to which it applies. In another embodiment, the indicatormay be an indicator of a location or position in which the particularelectronic message packet is stored. In another embodiment, a sequentialseries of numbers is assigned to each of the plurality of electronicmessage packets indicating an order.

An embodiment involves providing the order to the application (Block316). The order may be provided using any technique. For example, themessage order may be provided in a buffer available to the application.

In an embodiment, the plurality of electronic message packets may alsobe provided for the common destination application in at least onemessage buffer, and wherein the message order is provided in a bufferseparate from the at least one message buffer.

An embodiment may provide for storing each of the received electronicmessage packets are stored in a single buffer irrespective of whichmessage source of the plurality of message sources each of the receivedelectronic message packets originated from, the single buffer beingaccessible by the application (Block 316). The storing of the electronicmessage packets may occur upon the receipt of the electronic messagepackets. Also, source information of each of the plurality of electronicmessage packets may be maintained and provided with the organizedelectronic message packets for the common destination application.

In an embodiment, the plurality of message sources are each indicated ona list of sources, and wherein interfacing further comprises determiningwhether each message of the plurality of messages originated from asource included on the list of sources. The determination may beperformed at receipt of the electronic message packets by analyzingheader or routing data of the electronic message packets for dataindicating the specific sources of on the list of sources.

In an embodiment, the plurality of electronic message packets mayinvolve financial messages, the plurality of message sources may involvemarket participants, and the common destination application may involvean order entry gateway for use with an exchange operational to matchtrades using the financial messages.

In an embodiment, the order in which each electronic message packet wasreceived may be used by the application to determine a relative priorityfor each received electronic message packet of the plurality ofelectronic message packets.

FIG. 5A illustrates a traditional TCP packet processing engine. Packets501 are received into packet processing 510 where they are sorted intoparticular source buffers 511, 512, 513 for each particular source ofthe packets 501. The packets 501 then await collection by thedestination application 520. The packets 501 may be sorted within aparticular source buffer 511, 512, 513, however, an overall order of allpackets may not be determined from this type of buffered storagearrangement.

FIG. 5B illustrates an embodiment where packet processing 510 involvesdetermining an order of receipt of the packets 501. Prior to any packets501 being received, the buffers 511, 512, 513 may contain no packets. Aseach of the packets 501 is received, an order relative to other packetsis determined and the packets are placed into particular source buffers511, 512, 513. For example, as a packet 503 is received at packetprocessing 510 a time of receipt may be determined as a part of thepacket processing 510. Packet processing may then place the packet 503into a buffer 513 based on the source of the packet 503. Another packet502 may then be received later in time than a previous packet 503. Theorder that the other packet 502 arrived relative to the previous packet503 may be recorded. For example, the time of receipt of the otherpacket 502 by packet processing 510 may be recorded and/or associatedwith the other packet 502 and the packet 502 may be placed in aparticular source buffer 512 for the source of the other packet 502. Inthis example, the differing time of receipt for the packets 503, 502 maybe an indicator of an order for the packets 503, 502, and may berecorded into the order buffer 516. For example, the time of receiptsfor the packets 503, 502 may be associated with the respective packet503, 502, and stored in the order buffer. The packets 503, 502 thenremain in the source buffers 513, 512 until a destination application520 retrieves the packets 503, 502 and the respective order of receiptfor the packets 503, 502.

In an embodiment, the order may be formatted into an order buffer 516wherein the destination application 520 can use the provided order todetermine the order of the packets in the source buffers 511, 512, 513.For example, the order buffer 516 may associate individualidentification numbers of the packets 501 with an ordinal indicating arelative position of a particular packet of the packets. For example,Packet 1 may be assigned an ordinal such as 001 and an identificationnumber such as 1:1, whereas Packet 3 may be assigned an ordinal of 003and an identification number such as 2:1, and these indicators may bestored in a table in the order buffer 516 such that the destinationapplication 520 may use the indicators to determine that Packet 1 wasreceived before Packet 3. Therefore, even though the packets 501 arestored in source buffers 511, 512, 513 similar to FIG. 5A, an order ofreceipt of the packets 501 may still be communicated to a destinationapplication 520 for further deterministic processing of the packets 501.

FIG. 5C illustrates an embodiment where packet processing 510 involvesdetermining an order of receipt of the packets 501. In this embodiment,packets 501 are received similar to the way packets are received inFIGS. 5A and 5B, however, packet processing 510 also places the packets501 into a singular message buffer in particular positions 531, insteadof the particular source buffers 511, 512, 513 of FIGS. 5A and 5B. Forexample, a packet 502 may be received at packet processing 510 where atime of receipt may be determined. Packet processing 510 may place thepacket 502 into a position 532 in the message buffer 514. Packetprocessing 510 may also store the time of receipt of the packet 502associated with the position 532 of the message buffer 514 that thepacket 502 was stored. This is repeated for each message as they arriveat packet processing 510. In this way, the time of receipt of a packet502 will indicate an order relative to another packet 503 such that adestination application 520 may use the time of receipt information todetermine that a packet 502 was received by packet processing 510 afteranother packet 503.

More generally, as in FIG. 5B, each of the packets 501 is received andan order of receipt relative to other packets is determined. Also as inFIG. 5B, the order buffer 516 may contain information indicating anorder the packets 501 were received. For example, an indication thatPacket 1 was received prior to Packet 2, and Packet 2 prior to Packet 3will be recorded. In an embodiment, the message buffer 514 may be abuffer configured to operate as a First In First Out buffer (“FIFO”),and as such the packets 501 may not be stored in the message buffer 514in the order of receipt. The order buffer 516 may then provide the orderinformation for the destination application by associating a particularpacket 502 with a particular position 532 of the message buffer 514. Thedestination application 520 then only checks a single buffer 514 for thepackets 501, instead of the multiple source buffers 511, 512, 513required in FIG. 5B. Therefore, the communication of both the order ofreceipt of the packets and the packets 501 themselves is facilitated.

In an embodiment, such as an embodiment involving TCP, the communicationof packets from source to destination application involves networks thatoperate on a layered model, such as the Open Systems Interconnection(“OSI”) model. OSI involves seven layers of communication. A physicallayer conveys the bit stream, such as an electrical impulse, light orradio signal, physically through the network at the electrical andmechanical level. A data link layer encodes and decodes the bit streaminto bits. A network layer provides switching and routing technologies,creating logical paths for transmitting data from node to node through anetwork. A transport layer provides transfer of data between endsystems, or hosts, and is responsible for end-to-end error recovery andflow control. A session layer establishes, manages and terminatesconnections between applications. A presentation layer works totransform data into a form that the application layer can accept, and anapplication layer supports applications and end-user processes. Relatingthese layers to FIG. 5C, the receiving of packets and the storing ofpackets in the message buffer 514 may be handled by a network layer, andthe destination application 520 may access the singular message buffer514 via a transport layer coupled with the network layer. Also, in anembodiment, a packet may be considered received when acted upon at thenetwork layer, such as in processing a packet according to TCPstandards.

In an embodiment, packet deterministic processing 501 may be performedby a market, the plurality of packets 501 may be orders to buy or sell,the sources may be trading entities, and a destination application 520may be an order entry gateway that provides orders to buy or sell to themarket. The deterministic processing of the plurality of electronicmessage packets 501 ultimately communicated to an order book via anetwork from multiple different trading entities may be facilitated byreceiving each of the plurality of electronic message packets 501representing orders from the network. The deterministic processing maybe further facilitated by determining upon receipt of the electronicmessage packets 501, but prior to the received electronic messagepackets 501 being provided to the order entry gateway, an order in whicheach electronic message packet was received relative to the reception ofothers of the plurality of electronic message packets, the order beingdetermined irrespective of which trading entity of the multipledifferent trading entities each of the received electronic messagepacket originated from. The deterministic processing may also befacilitated by providing the electronic message packets to the orderbook. For example, the electronic message packets may be provided in asingle buffer 514 regardless of the trading entity that originated theelectronic message packet. Another buffer 516 may also be providedindicating the order in which the electronic message packets 501 werereceived. The other buffer 516 may be a side-long-buffer configured tocorrelate to the electronic message packets in the message buffer 514 soas to convey the determined order. An order entry gateway may then beconfigured to collect the electronic message packets 501 and thedetermined order from the two buffers 514, 516 and provide them for theorder entry gateway. The order entry gateway may then provide theelectronic message packets and the determined order to an order book. Amatch engine may then use the electronic message packets and thedetermined order to match orders represented by the electronic messagepackets based on a priority determined from the determined order.

Referring to FIG. 4, an illustrative embodiment of a general computersystem 400 is shown. The computer system 400 can include a set ofinstructions that can be executed to cause the computer system 400 toperform any one or more of the methods or computer based functionsdisclosed herein. The computer system 400 may operate as a standalonedevice or may be connected, e.g., using a network, to other computersystems or peripheral devices. Any of the components discussed above,such as the processor 202, may be a computer system 400 or a componentin the computer system 400. The computer system 400 may implementembodiments for facilitation of deterministic management of electronicmessage packets.

In a networked deployment, the computer system 400 may operate in thecapacity of a server or as a client user computer in a client-serveruser network environment, or as a peer computer system in a peer-to-peer(or distributed) network environment. The computer system 400 can alsobe implemented as or incorporated into various devices, such as apersonal computer (PC), a tablet PC, a set-top box (STB), a personaldigital assistant (PDA), a mobile device, a palmtop computer, a laptopcomputer, a desktop computer, a communications device, a wirelesstelephone, a land-line telephone, a control system, a camera, a scanner,a facsimile machine, a printer, a pager, a personal trusted device, aweb appliance, a network router, switch or bridge, or any other machinecapable of executing a set of instructions (sequential or otherwise)that specify actions to be taken by that machine. In a particularembodiment, the computer system 400 can be implemented using electronicdevices that provide voice, video or data communication. Further, whilea single computer system 400 is illustrated, the term “system” shallalso be taken to include any collection of systems or sub-systems thatindividually or jointly execute a set, or multiple sets, of instructionsto perform one or more computer functions.

As illustrated in FIG. 4, the computer system 400 may include aprocessor 402, e.g., a central processing unit (CPU), a graphicsprocessing unit (GPU), or both. The processor 402 may be a component ina variety of systems. For example, the processor 402 may be part of astandard personal computer or a workstation. The processor 402 may beone or more general processors, digital signal processors, applicationspecific integrated circuits, field programmable gate arrays, servers,networks, digital circuits, analog circuits, combinations thereof, orother now known or later developed devices for analyzing and processingdata. The processor 402 may implement a software program, such as codegenerated manually (i.e., programmed).

The computer system 400 may include a memory 404 that can communicatevia a bus 408. The memory 404 may be a main memory, a static memory, ora dynamic memory. The memory 404 may include, but is not limited tocomputer readable storage media such as various types of volatile andnon-volatile storage media, including but not limited to random accessmemory, read-only memory, programmable read-only memory, electricallyprogrammable read-only memory, electrically erasable read-only memory,flash memory, magnetic tape or disk, optical media and the like. In oneembodiment, the memory 404 includes a cache or random access memory forthe processor 402. In alternative embodiments, the memory 404 isseparate from the processor 402, such as a cache memory of a processor,the system memory, or other memory. The memory 404 may be an externalstorage device or database for storing data. Examples include a harddrive, compact disc (“CD”), digital video disc (“DVD”), memory card,memory stick, floppy disc, universal serial bus (“USB”) memory device,or any other device operative to store data. The memory 404 is operableto store instructions executable by the processor 402. The functions,acts or tasks illustrated in the figures or described herein may beperformed by the programmed processor 402 executing the instructions 412stored in the memory 404. The functions, acts or tasks are independentof the particular type of instructions set, storage media, processor orprocessing strategy and may be performed by software, hardware,integrated circuits, firmware, micro-code and the like, operating aloneor in combination. Likewise, processing strategies may includemultiprocessing, multitasking, parallel processing and the like.

As shown, the computer system 400 may further include a display unit414, such as a liquid crystal display (LCD), an organic light emittingdiode (OLED), a flat panel display, a solid state display, a cathode raytube (CRT), a projector, a printer or other now known or later developeddisplay device for outputting determined information. The display 414may act as an interface for the user to see the functioning of theprocessor 402, or specifically as an interface with the software storedin the memory 404 or in the drive unit 406.

Additionally, the computer system 400 may include an input device 416configured to allow a user to interact with any of the components ofsystem 400. The input device 416 may be a number pad, a keyboard, or acursor control device, such as a mouse, or a joystick, touch screendisplay, remote control or any other device operative to interact withthe system 400.

In a particular embodiment, as depicted in FIG. 4, the computer system400 may also include a disk or optical drive unit 406. The disk driveunit 406 may include a computer-readable medium 410 in which one or moresets of instructions 412, e.g. software, can be embedded. Further, theinstructions 412 may embody one or more of the methods or logic asdescribed herein. In a particular embodiment, the instructions 412 mayreside completely, or at least partially, within the memory 404 and/orwithin the processor 402 during execution by the computer system 400.The memory 404 and the processor 402 also may include computer-readablemedia as discussed above.

The present disclosure contemplates a computer-readable medium thatincludes instructions 412 or receives and executes instructions 412responsive to a propagated signal, so that a device connected to anetwork 420 can communicate voice, video, audio, images or any otherdata over the network 420. Further, the instructions 412 may betransmitted or received over the network 420 via a communicationinterface 418. The communication interface 418 may be a part of theprocessor 402 or may be a separate component. The communicationinterface 418 may be created in software or may be a physical connectionin hardware. The communication interface 418 is configured to connectwith a network 420, external media, the display 414, or any othercomponents in system 400, or combinations thereof. The connection withthe network 420 may be a physical connection, such as a wired Ethernetconnection or may be established wirelessly as discussed below.Likewise, the additional connections with other components of the system400 may be physical connections or may be established wirelessly. In anembodiment, the communication interface 418 may be configured tocommunicate electronic message packets through the network 420 to acommon destination.

The network 420 may include wired networks, wireless networks, orcombinations thereof. The wireless network may be a cellular telephonenetwork, an 802.11, 802.16, 802.20, or WiMax network. Further, thenetwork 420 may be a public network, such as the Internet, a privatenetwork, such as an intranet, or combinations thereof, and may utilize avariety of networking protocols now available or later developedincluding, but not limited to TCP/IP based networking protocols.

Embodiments of the subject matter and the functional operationsdescribed in this specification can be implemented in digital electroniccircuitry, or in computer software, firmware, or hardware, including thestructures disclosed in this specification and their structuralequivalents, or in combinations of one or more of them. Embodiments ofthe subject matter described in this specification can be implemented asone or more computer program products, i.e., one or more modules ofcomputer program instructions encoded on a computer readable medium forexecution by, or to control the operation of, data processing apparatus.While the computer-readable medium is shown to be a single medium, theterm “computer-readable medium” includes a single medium or multiplemedia, such as a centralized or distributed database, and/or associatedcaches and servers that store one or more sets of instructions. The term“computer-readable medium” shall also include any medium that is capableof storing, encoding or carrying a set of instructions for execution bya processor or that cause a computer system to perform any one or moreof the methods or operations disclosed herein. The computer readablemedium can be a machine-readable storage device, a machine-readablestorage substrate, a memory device, or a combination of one or more ofthem. The term “data processing apparatus” encompasses all apparatus,devices, and machines for processing data, including by way of example aprogrammable processor, a computer, or multiple processors or computers.The apparatus can include, in addition to hardware, code that creates anexecution environment for the computer program in question, e.g., codethat constitutes processor firmware, a protocol stack, a databasemanagement system, an operating system, or a combination of one or moreof them.

In a particular non-limiting, exemplary embodiment, thecomputer-readable medium can include a solid-state memory such as amemory card or other package that houses one or more non-volatileread-only memories. Further, the computer-readable medium can be arandom access memory or other volatile re-writable memory. Additionally,the computer-readable medium can include a magneto-optical or opticalmedium, such as a disk or tapes or other storage device to capturecarrier wave signals such as a signal communicated over a transmissionmedium. A digital file attachment to an e-mail or other self-containedinformation archive or set of archives may be considered a distributionmedium that is a tangible storage medium. Accordingly, the disclosure isconsidered to include any one or more of a computer-readable medium or adistribution medium and other equivalents and successor media, in whichdata or instructions may be stored.

In an alternative embodiment, dedicated hardware implementations, suchas application specific integrated circuits, programmable logic arraysand other hardware devices, can be constructed to implement one or moreof the methods described herein. Applications that may include theapparatus and systems of various embodiments can broadly include avariety of electronic and computer systems. One or more embodimentsdescribed herein may implement functions using two or more specificinterconnected hardware modules or devices with related control and datasignals that can be communicated between and through the modules, or asportions of an application-specific integrated circuit. Accordingly, thepresent system encompasses software, firmware, and hardwareimplementations.

In accordance with various embodiments of the present disclosure, themethods described herein may be implemented by software programsexecutable by a computer system. Further, in an exemplary, non-limitedembodiment, implementations can include distributed processing,component/object distributed processing, and parallel processing.Alternatively, virtual computer system processing can be constructed toimplement one or more of the methods or functionality as describedherein.

Although the present specification describes components and functionsthat may be implemented in particular embodiments with reference toparticular standards and protocols, the invention is not limited to suchstandards and protocols. For example, standards for Internet and otherpacket switched network transmission (e.g., TCP/IP, UDP/IP, HTML, HTTP,HTTPS) represent examples of the state of the art. Such standards areperiodically superseded by faster or more efficient equivalents havingessentially the same functions. Accordingly, replacement standards andprotocols having the same or similar functions as those disclosed hereinare considered equivalents thereof.

A computer program (also known as a program, software, softwareapplication, script, or code) can be written in any form of programminglanguage, including compiled or interpreted languages, and it can bedeployed in any form, including as a standalone program or as a module,component, subroutine, or other unit suitable for use in a computingenvironment. A computer program does not necessarily correspond to afile in a file system. A program can be stored in a portion of a filethat holds other programs or data (e.g., one or more scripts stored in amarkup language document), in a single file dedicated to the program inquestion, or in multiple coordinated files (e.g., files that store oneor more modules, sub programs, or portions of code). A computer programcan be deployed to be executed on one computer or on multiple computersthat are located at one site or distributed across multiple sites andinterconnected by a communication network.

The processes and logic flows described in this specification can beperformed by one or more programmable processors executing one or morecomputer programs to perform functions by operating on input data andgenerating output. The processes and logic flows can also be performedby, and apparatus can also be implemented as, special purpose logiccircuitry, e.g., a reconfigurable logic device or an ASIC (applicationspecific integrated circuit). As used herein, the terms “microprocessor”or “general-purpose processor” (“GPP”) may refer to a hardware devicethat fetches instructions and data from a memory or storage device andexecutes those instructions (for example, an Intel Xeon processor or anAMD Opteron processor) to then, for example, process the data inaccordance therewith. The term “reconfigurable logic” may refer to anylogic technology whose form and function can be significantly altered(i.e., reconfigured) in the field post-manufacture as opposed to amicroprocessor, whose function can change post-manufacture, e.g. viacomputer executable software code, but whose form, e.g. thearrangement/layout and interconnection of logical structures, is fixedat manufacture. The term “software” will refer to data processingfunctionality that is deployed on a GPP. The term “firmware” will referto data processing functionality that is deployed on reconfigurablelogic. One example of a reconfigurable logic is a field programmablegate array (“FPGA”) which is a reconfigurable integrated circuit. AnFPGA may contain programmable logic components called “logic blocks”,and a hierarchy of reconfigurable interconnects that allow the blocks tobe “wired together”— somewhat like many (changeable) logic gates thatcan be inter-wired in (many) different configurations. Logic blocks maybe configured to perform complex combinatorial functions, or merelysimple logic gates like AND, OR, NOT and XOR. An FPGA may furtherinclude memory elements, which may be simple flip-flops or more completeblocks of memory. In an embodiment, the deterministic message processor220 shown in FIG. 2A may be implemented using an FPGA or an ASIC. Forexample, the packet order determining 256 and/or the packet processing258 may be implemented as an FPGA. In an embodiment, both the packetorder determining 256 and the packet processing 258 may be implementedusing the same FPGA.

Processors suitable for the execution of a computer program include, byway of example, both general and special purpose microprocessors, andanyone or more processors of any kind of digital computer. Generally, aprocessor will receive instructions and data from a read only memory ora random access memory or both. The essential elements of a computer area processor for performing instructions and one or more memory devicesfor storing instructions and data. Generally, a computer will alsoinclude, or be operatively coupled to receive data from or transfer datato, or both, one or more mass storage devices for storing data, e.g.,magnetic, magneto optical disks, or optical disks. However, a computerneed not have such devices. Moreover, a computer can be embedded inanother device, e.g., a mobile telephone, a personal digital assistant(PDA), a mobile audio player, a Global Positioning System (GPS)receiver, to name just a few. Computer readable media suitable forstoring computer program instructions and data include all forms of nonvolatile memory, media and memory devices, including by way of examplesemiconductor memory devices, e.g., EPROM, EEPROM, and flash memorydevices; magnetic disks, e.g., internal hard disks or removable disks;magneto optical disks; and CD ROM and DVD-ROM disks. The processor andthe memory can be supplemented by, or incorporated in, special purposelogic circuitry.

To provide for interaction with a user, embodiments of the subjectmatter described in this specification can be implemented on a devicehaving a display, e.g., a CRT (cathode ray tube) or LCD (liquid crystaldisplay) monitor, for displaying information to the user and a keyboardand a pointing device, e.g., a mouse or a trackball, by which the usercan provide input to the computer. Other kinds of devices can be used toprovide for interaction with a user as well; for example, feedbackprovided to the user can be any form of sensory feedback, e.g., visualfeedback, auditory feedback, or tactile feedback; and input from theuser can be received in any form, including acoustic, speech, or tactileinput.

Embodiments of the subject matter described in this specification can beimplemented in a computing system that includes a back end component,e.g., as a data server, or that includes a middleware component, e.g.,an application server, or that includes a front end component, e.g., aclient computer having a graphical user interface or a Web browserthrough which a user can interact with an implementation of the subjectmatter described in this specification, or any combination of one ormore such back end, middleware, or front end components. The componentsof the system can be interconnected by any form or medium of digitaldata communication, e.g., a communication network. Examples ofcommunication networks include a local area network (“LAN”) and a widearea network (“WAN”), e.g., the Internet.

The computing system can include clients and servers. A client andserver are generally remote from each other and typically interactthrough a communication network. The relationship of client and serverarises by virtue of computer programs running on the respectivecomputers and having a client-server relationship to each other.

The illustrations of the embodiments described herein are intended toprovide a general understanding of the structure of the variousembodiments. The illustrations are not intended to serve as a completedescription of all of the elements and features of apparatus and systemsthat utilize the structures or methods described herein. Many otherembodiments may be apparent to those of skill in the art upon reviewingthe disclosure. Other embodiments may be utilized and derived from thedisclosure, such that structural and logical substitutions and changesmay be made without departing from the scope of the disclosure.Additionally, the illustrations are merely representational and may notbe drawn to scale. Certain proportions within the illustrations may beexaggerated, while other proportions may be minimized. Accordingly, thedisclosure and the figures are to be regarded as illustrative ratherthan restrictive.

While this specification contains many specifics, these should not beconstrued as limitations on the scope of the invention or of what may beclaimed, but rather as descriptions of features specific to particularembodiments of the invention. Certain features that are described inthis specification in the context of separate embodiments can also beimplemented in combination in a single embodiment. Conversely, variousfeatures that are described in the context of a single embodiment canalso be implemented in multiple embodiments separately or in anysuitable sub-combination. Moreover, although features may be describedabove as acting in certain combinations and even initially claimed assuch, one or more features from a claimed combination can in some casesbe excised from the combination, and the claimed combination may bedirected to a sub-combination or variation of a sub-combination.

Similarly, while operations are depicted in the drawings and describedherein in a particular order, this should not be understood as requiringthat such operations be performed in the particular order shown or insequential order, or that all illustrated operations be performed, toachieve desirable results. In certain circumstances, multitasking andparallel processing may be advantageous. Moreover, the separation ofvarious system components in the embodiments described above should notbe understood as requiring such separation in all embodiments, and itshould be understood that the described program components and systemscan generally be integrated together in a single software product orpackaged into multiple software products.

One or more embodiments of the disclosure may be referred to herein,individually and/or collectively, by the term “invention” merely forconvenience and without intending to voluntarily limit the scope of thisapplication to any particular invention or inventive concept. Moreover,although specific embodiments have been illustrated and describedherein, it should be appreciated that any subsequent arrangementdesigned to achieve the same or similar purpose may be substituted forthe specific embodiments shown. This disclosure is intended to cover anyand all subsequent adaptations or variations of various embodiments.Combinations of the above embodiments, and other embodiments notspecifically described herein, will be apparent to those of skill in theart upon reviewing the description.

The Abstract of the Disclosure is provided to comply with 37 C.F.R.§1.72(b) and is submitted with the understanding that it will not beused to interpret or limit the scope or meaning of the claims. Inaddition, in the foregoing Detailed Description, various features may begrouped together or described in a single embodiment for the purpose ofstreamlining the disclosure. This disclosure is not to be interpreted asreflecting an intention that the claimed embodiments require morefeatures than are expressly recited in each claim. Rather, as thefollowing claims reflect, inventive subject matter may be directed toless than all of the features of any of the disclosed embodiments. Thus,the following claims are incorporated into the Detailed Description,with each claim standing on its own as defining separately claimedsubject matter.

It is therefore intended that the foregoing detailed description beregarded as illustrative rather than limiting, and that it be understoodthat it is the following claims, including all equivalents, that areintended to define the spirit and scope of this invention.

What is claimed is:
 1. A computer implemented method for facilitation ofdeterministic management of a plurality of electronic message packetscommunicated to an application via a network from a plurality of messagesources, the method comprising: receiving, by a processor, an electronicmessage packet of the plurality of electronic message packets from thenetwork at a common destination to which all of the plurality ofelectronic message packets are directed; determining, by the processor,for the received electronic message packet, data indicative of an orderthe received electronic message packet was received relative topreviously received electronic message packets of the plurality ofelectronic message packets stored in a memory coupled with theprocessor, the data indicative of the order being determinedirrespective of which message source of the plurality of message sourceseach of the received electronic message packets originated; storing, bythe processor in the memory, the received electronic message packet inan arrangement which associates the received electronic message packetaccording to a same respective message source of the plurality ofmessage sources from which the received electronic message packet andeach of the stored previously received electronic message packetsrespectively originated irrespective of the order of receipt thereof;and communicating the stored electronic message packet to theapplication from the memory as stored therein such that the applicationdoes not process the received electronic message packet prior to anotherreceived electronic message packet received prior thereto.
 2. The methodof claim 1, wherein the plurality of electronic message packets compriseorders to trade, the plurality of message sources comprise marketparticipants, and the application comprises an order entry gatewayconfigured with an exchange operational to match trades using thefinancial messages.
 3. The method of claim 1, wherein each of theplurality of electronic message packets comprise a format fortransmission using Transmission Control Protocol (“TCP”).
 4. The methodof claim 1, wherein the data indicative of the order comprises dataindicative of a time of reception of the electronic message packet. 5.The method of claim 1, wherein the data indicative of the ordercomprises a sequential series of numbers assigned to the electronicmessage packets.
 6. The method of claim 1 further comprising: storingthe electronic message packet in one message buffer, and storing dataindicative of order in a buffer separate from the at least one messagebuffer.
 7. The method of claim 1, further comprising: storing thedetermined data indicative of the order and the electronic messagepacket together in the same memory.
 8. A system for facilitation ofdeterministic management of a plurality of electronic message packetscomprising financial messages communicated to an application via anetwork from a plurality of message sources comprising marketparticipants, the application comprising an order entry gateway for usewith an electronic exchange operational to match trades using thefinancial messages, the system comprising: a processor and a memorycoupled therewith; a first logic stored in the memory at a commondestination to which an electronic message packet of the plurality ofelectronic message packets is directed and configured to be executed bythe processor to cause the system to receive the electronic messagepacket from the network; a second logic stored in the memory andconfigured to be executed by the processor to cause the system todetermine, automatically upon receipt thereof prior to the receivedelectronic message packet being provided to the application, dataindicative of an order in which the received electronic message packetwas received at the common destination relative to the reception ofothers of a plurality of previously received electronic message packets,the data indicative of the order being determined irrespective of whichmessage source the received electronic message packet and each of thepreviously received electronic message packets originated; a third logicstored in the memory and configured to be executed by the processor tocause the system to store the received electronic message packet in thememory in an arrangement which associates the received electronicmessage packet according to a respective message source of the pluralityof message sources from which the received electronic message packet andeach of the previously received electronic message packets respectivelyoriginated irrespective of the order of receipt thereof; and a fourthlogic stored in the memory and configured to be executed by theprocessor to cause the system to provide the data indicative of order tothe application and allow the application to access the receivedelectronic message packet in the memory according to the orderirrespective of the message source.
 9. The system of claim 8, whereinthe arrangement is a single message buffer.
 10. The system of claim 9further comprising: a fifth logic stored in a memory and configured tobe executed by the processor to cause the system to store dataindicative of the order is stored in a buffer separate from the singlemessage buffer.
 11. The system of claim 8, wherein the data indicativeof the order comprises data indicative of a time of receipt of theelectronic message packet.
 12. The system of claim 8, wherein the dataindicative of the order comprises a sequential series of numbersassigned to the received electronic message packet.
 13. The system ofclaim 8, wherein each of the plurality of electronic message packetscomprise a format for transmission using Transmission Control Protocol(“TCP”).
 14. The system of claim 8, wherein the order in which theelectronic message packet was received determines a relative priority atthe application for the received electronic message packet relative toothers of the plurality of electronic message packets.
 15. A system forfacilitation of deterministic management of a plurality of completedelectronic messages comprising financial messages communicated to anapplication via a network from a plurality of message sources comprisingmarket participants, the application comprising an order entry gatewayfor use with an exchange operational to match trades using the financialmessages, the system comprising: at least one memory, at a commondestination to which all of a plurality of electronic message packetsare directed, operable to store the plurality of electronic messagepackets in an arrangement which associates received electronic messagepackets according to a same respective message source of the pluralityof message sources from which each of the received electronic messagepackets respectively originated irrespective of the time of receiptthereof; and at least one processor configured to cause the system to:receive a set of electronic message packets which together form acomplete message; constructing the complete message upon receipt of allof the set of electronic message packets; determine, automatically uponreceipt of the last electronic message packet of the set of electronicmessage packet prior to the complete message being provided to theapplication, an order in which the last electronic message packet wasreceived relative to other complete messages in the plurality ofcompleted messages, the order being determined irrespective of whichmessage source of the plurality of message sources each of the receivedelectronic message packets originated; and provide the determined orderto the application and allow the application to access the completemessage in the memory according to the order.
 16. The system of claim15, wherein the order is determined by a time of reception of the lastelectronic message packet of the completed message is received relativeto another last electronic message packet of another completed message.17. The system of claim 15, wherein each of the plurality of electronicmessage packets comprise a format for transmission using TransmissionControl Protocol (“TCP”).
 18. The system of claim 15, wherein the orderis determined when a predetermining percentage of the packets arereceived.
 19. The system of claim 15, wherein the order comprises asequential series of numbers assigned to each of the plurality ofcompleted messages.
 20. The system of claim 15, wherein the processor isfurther configured to cause the system to store the plurality ofcompleted messages for the application in at least one message buffer,and wherein data indicative of the determined order is stored in abuffer separate from the at least one message buffer.
 21. The system ofclaim 15, wherein the order in which each completed message wasconstructed determines a relative priority at the application for eachcompleted message of the plurality of completed messages.